ACTIVATED CARBON ACTIVATION Activated carbon is carbon produced from carbonaceous source materials such as bamboo, coconut husk, willow peat, wood, coir, lignite, coal, and petroleum pitch. It can be produced by one of the following processes: 1. Physical activation: The source material is developed into activated carbons using hot gases. Air is then introduced to burn out the gasses, creating a graded, screened and de-dusted form of activated carbon. 2. Chemical activation: Prior to carbonization, the raw material is impregnated with certain chemicals. The chemical is typically an acid, strong base, [1][2] or a salt[16] (phosphoric acid, potassium hydroxide, sodium hydroxide, calcium chloride, and zinc chloride 25%). Then, the raw material is carbonized at lower temperatures (450–900 °C). It is believed that the carbonization / activation step proceeds simultaneously with the chemical activation.[clarification needed] Chemical activation is preferred over physical activation owing to the lower temperatures and shorter time needed for activating material. #ACTIVATED-Carbon #Activated-Carbon-in-Vadodara #Activated-Carbon-in-gujarat #Activated-Carbon-in-india #Activated-Carbon-in-MAHARASHTRA #Activated-Carbon-in-PUNE #Activated-Carbon-in-NAGPUR #Activated-Carbon-in-CHENNAI #Activated-Carbon-in-TAMILNADU #Activated-Carbon-in-KARNATAKA #Activated-Carbon-in-UTTERPRADESH #Activated-Carbon-in-ANDRAPRADESH #Activated-Carbon-in-ODDISA